OK, here's my effort. I'm usually good at M/C but some of these were pretty ambiguous.
1C
2D
3B
4A
5D
6B
7D
8C
9B
10D
11A
12B
13C
14D
15A
16C
17C
18B
19C
20C
Feel free to disagree with any of those, but I was most dubious about 3,6,8,15 and 17 (How would I know what a professional photographer thinks is important)
Martin